I have had problems with the photoshop mix app on my iPad.
When I try to access files from Dropbox, it asks to allow access. But once I tap on allow, the photoshop mix app just shuts down and goes back to the home screen. When I check my Dropbox account, it says I have granted access to Photoshop Mix, but I still keep having "allow photoshop mix to access Dropbox" popups and therefore cannot access my Dropbox files.

Dropbox issue has been resolved. We apologize for the inconvenience. Please let us know if you still run into the problem.
We really appreciate that you brought this issue to our attention and allow us to correct it quickly.